This cluster of papers focuses on the pathogenesis, diagnosis, and treatment of pemphigoid diseases, particularly bullous pemphigoid and pemphigus vulgaris. It covers topics such as autoantibodies, rituximab therapy, epidemiology, and the use of immunosuppressive therapy including intravenous immunoglobulin. The research also delves into the role of desmoglein in disease pathology and autoimmune mechanisms.